A big exercise trend in the US, kranking works the same wonders for arms as spinning does for legs.
The state-of-the-art machines, which look like upturned bikes, work your arms as you pedal with them.
And not only does kranking improve muscle tone in your upper limbs, it works the shoulders, chest and back too.
Plus, it strengthens your core as you stabilise your body.
Sporty types can krank as part of a group of six, competing against each other while attached to heart monitors, which tracks progress and spurs you on to krank harder.
It’s a great way to keep up that new year’s resolution of toning your upper body, and like spinning, it burns calories in a big way.
If just kranking isn’t enough for you, Virgin Active in Barbican also runs krank fusion classes, which involves a mix of kranking and spinning, so you work your lower body too.
Half-hour sessions happen at Virgin Active Barbican throughout the week in the morning, evening and at lunchtimes.
Membership costs from £59.95 per month. Hopefully there won’t be any tears.
Where: Virgin Active, 97 Aldersgate Street, EC1A 4JP